1021220010102 has 32 divisors (see below), whose sum is σ = 2044394451072. Its totient is φ = 340081089984.

The previous prime is 1021220010073. The next prime is 1021220010113. The reversal of 1021220010102 is 2010100221201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29071233 + ... + 29106339.

It is an arithmetic number, because the mean of its divisors is an integer number (63887326596).

Almost surely, 2^{1021220010102} is an apocalyptic number.

1021220010102 is an abundant number, since it is smaller than the sum of its proper divisors (1023174440970).

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

1021220010102 is a wasteful number, since it uses less digits than its factorization.

1021220010102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39612.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1021220010102 its reverse (2010100221201), we get a palindrome (3031320231303).

The spelling of 1021220010102 in words is "one trillion, twenty-one billion, two hundred twenty million, ten thousand, one hundred two".