1021220121102 has 8 divisors (see below), whose sum is σ = 2042440242216. Its totient is φ = 340406707032.

The previous prime is 1021220121073. The next prime is 1021220121157. The reversal of 1021220121102 is 2011210221201.

It is a sphenic number, since it is the product of 3 distinct primes.

1021220121102 is an admirable number.

It is a congruent number.

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, 85101676753 + ... + 85101676764.

It is an arithmetic number, because the mean of its divisors is an integer number (255305030277).

Almost surely, 2^{1021220121102} is an apocalyptic number.

1021220121102 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1021220121102 is a wasteful number, since it uses less digits than its factorization.

1021220121102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170203353522.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1021220121102 its reverse (2011210221201), we get a palindrome (3032430342303).

The spelling of 1021220121102 in words is "one trillion, twenty-one billion, two hundred twenty million, one hundred twenty-one thousand, one hundred two".