10621211112 has 24 divisors (see below), whose sum is σ = 28765780290. Its totient is φ = 3540403680.

The previous prime is 10621211099. The next prime is 10621211141. The reversal of 10621211112 is 21111212601.

10621211112 is a `hidden beast` number, since 1 + 0 + 621 + 21 + 11 + 12 = 666.

It can be written as a sum of positive squares in only one way, i.e., 10611884196 + 9326916 = 103014^2 + 3054^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×10621211112² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 73758339 + ... + 73758482.

Almost surely, 2^10621211112 is an apocalyptic number.

10621211112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10621211112 is an abundant number, since it is smaller than the sum of its proper divisors (18144569178).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10621211112 is a wasteful number, since it uses less digits than its factorization.

10621211112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147516833 (or 147516826 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 10621211112 its reverse (21111212601), we get a palindrome (31732423713).

The spelling of 10621211112 in words is "ten billion, six hundred twenty-one million, two hundred eleven thousand, one hundred twelve".