2101121444 has 12 divisors (see below), whose sum is σ = 3678482304. Its totient is φ = 1050126504.

The previous prime is 2101121431. The next prime is 2101121467. The reversal of 2101121444 is 4441211012.

It is a super-2 number, since 2×2101121444² = 8829422644873290272, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97544 + ... + 117119.

It is an arithmetic number, because the mean of its divisors is an integer number (306540192).

Almost surely, 2^2101121444 is an apocalyptic number.

It is an amenable number.

2101121444 is a deficient number, since it is larger than the sum of its proper divisors (1577360860).

2101121444 is a wasteful number, since it uses less digits than its factorization.

2101121444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217114 (or 217112 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 2101121444 is about 45837.9912736149. The cubic root of 2101121444 is about 1280.8070764576.

Adding to 2101121444 its reverse (4441211012), we get a palindrome (6542332456).

The spelling of 2101121444 in words is "two billion, one hundred one million, one hundred twenty-one thousand, four hundred forty-four".