111021020000212 has 24 divisors (see below), whose sum is σ = 222046605764480. Its totient is φ = 47579458764960.

The previous prime is 111021020000197. The next prime is 111021020000249. The reversal of 111021020000212 is 212000020120111.

It is a junction number, because it is equal to n+sod(n) for n = 111021020000192 and 111021020000201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39378912 + ... + 42103927.

Almost surely, 2^{111021020000212} is an apocalyptic number.

It is an amenable number.

111021020000212 is an abundant number, since it is smaller than the sum of its proper divisors (111025585764268).

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

111021020000212 is a wasteful number, since it uses less digits than its factorization.

111021020000212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81531511 (or 81531509 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 111021020000212 its reverse (212000020120111), we get a palindrome (323021040120323).

The spelling of 111021020000212 in words is "one hundred eleven trillion, twenty-one billion, twenty million, two hundred twelve", and thus it is an aban number.