10155400212 has 48 divisors (see below), whose sum is σ = 25617247040. Its totient is φ = 3120291072.

The previous prime is 10155400169. The next prime is 10155400223. The reversal of 10155400212 is 21200455101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 593473 + ... + 610344.

Almost surely, 2^10155400212 is an apocalyptic number.

10155400212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10155400212 is an abundant number, since it is smaller than the sum of its proper divisors (15461846828).

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

10155400212 is a wasteful number, since it uses less digits than its factorization.

10155400212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1203880 (or 1203878 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 21.

Adding to 10155400212 its reverse (21200455101), we get a palindrome (31355855313).

The spelling of 10155400212 in words is "ten billion, one hundred fifty-five million, four hundred thousand, two hundred twelve".