10120021101212 has 48 divisors (see below), whose sum is σ = 20436207144192. Its totient is φ = 4339735044480.

The previous prime is 10120021101209. The next prime is 10120021101247. The reversal of 10120021101212 is 21210112002101.

It is a super-2 number, since 2×10120021101212² (a number of 27 digits) contains 22 as substring.

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, 68419418 + ... + 68567169.

It is an arithmetic number, because the mean of its divisors is an integer number (425754315504).

Almost surely, 2^{10120021101212} is an apocalyptic number.

It is an amenable number.

10120021101212 is an abundant number, since it is smaller than the sum of its proper divisors (10316186042980).

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

10120021101212 is a wasteful number, since it uses less digits than its factorization.

10120021101212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136986698 (or 136986696 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 10120021101212 its reverse (21210112002101), we get a palindrome (31330133103313).

The spelling of 10120021101212 in words is "ten trillion, one hundred twenty billion, twenty-one million, one hundred one thousand, two hundred twelve".