102021211222012 has 24 divisors (see below), whose sum is σ = 181465328444400. Its totient is φ = 50173987157760.

The previous prime is 102021211221977. The next prime is 102021211222067. The reversal of 102021211222012 is 210222112120201.

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, 32271543 + ... + 35291569.

It is an arithmetic number, because the mean of its divisors is an integer number (7561055351850).

Almost surely, 2^{102021211222012} is an apocalyptic number.

It is an amenable number.

102021211222012 is a deficient number, since it is larger than the sum of its proper divisors (79444117222388).

102021211222012 is a wasteful number, since it uses less digits than its factorization.

102021211222012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3158541 (or 3158539 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 102021211222012 its reverse (210222112120201), we get a palindrome (312243323342213).

The spelling of 102021211222012 in words is "one hundred two trillion, twenty-one billion, two hundred eleven million, two hundred twenty-two thousand, twelve".