1020102111212 has 12 divisors (see below), whose sum is σ = 1787261756280. Its totient is φ = 509455895136.

The previous prime is 1020102111209. The next prime is 1020102111229. The reversal of 1020102111212 is 2121112010201.

It is a super-2 number, since 2×1020102111212² (a number of 25 digits) 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, 148786262 + ... + 148793117.

It is an arithmetic number, because the mean of its divisors is an integer number (148938479690).

Almost surely, 2^{1020102111212} is an apocalyptic number.

It is an amenable number.

1020102111212 is a deficient number, since it is larger than the sum of its proper divisors (767159645068).

1020102111212 is a wasteful number, since it uses less digits than its factorization.

1020102111212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297580240 (or 297580238 counting only the distinct ones).

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

Adding to 1020102111212 its reverse (2121112010201), we get a palindrome (3141214121413).

The spelling of 1020102111212 in words is "one trillion, twenty billion, one hundred two million, one hundred eleven thousand, two hundred twelve".