1212111010102 has 32 divisors (see below), whose sum is σ = 1851203548800. Its totient is φ = 595104003648.

The previous prime is 1212111010051. The next prime is 1212111010111. The reversal of 1212111010102 is 2010101112121.

It is a happy number.

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, 56685649 + ... + 56707027.

It is an arithmetic number, because the mean of its divisors is an integer number (57850110900).

Almost surely, 2^{1212111010102} is an apocalyptic number.

1212111010102 is a deficient number, since it is larger than the sum of its proper divisors (639092538698).

1212111010102 is a wasteful number, since it uses less digits than its factorization.

1212111010102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22780.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1212111010102 its reverse (2010101112121), we get a palindrome (3222212122223).

The spelling of 1212111010102 in words is "one trillion, two hundred twelve billion, one hundred eleven million, ten thousand, one hundred two".