102010222121012 has 24 divisors (see below), whose sum is σ = 189998313764616. Its totient is φ = 47756080816128.

The previous prime is 102010222120999. The next prime is 102010222121111. The reversal of 102010222121012 is 210121222010201.

It can be written as a sum of positive squares in 4 ways, for example, as 14424469777936 + 87585752343076 = 3797956^2 + 9358726^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

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, 3886386683 + ... + 3886412930.

It is an arithmetic number, because the mean of its divisors is an integer number (7916596406859).

Almost surely, 2^{102010222121012} is an apocalyptic number.

It is an amenable number.

102010222121012 is a deficient number, since it is larger than the sum of its proper divisors (87988091643604).

102010222121012 is a wasteful number, since it uses less digits than its factorization.

102010222121012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7772799827 (or 7772799825 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 102010222121012 its reverse (210121222010201), we get a palindrome (312131444131213).

The spelling of 102010222121012 in words is "one hundred two trillion, ten billion, two hundred twenty-two million, one hundred twenty-one thousand, twelve".