1022021102121 has 16 divisors (see below), whose sum is σ = 1363340894400. Its totient is φ = 681024447488.

The previous prime is 1022021102107. The next prime is 1022021102129. The reversal of 1022021102121 is 1212011202201.

It is a cyclic number.

It is not a de Polignac number, because 1022021102121 - 2⁷ = 1022021101993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1022021102121.

It is not an unprimeable number, because it can be changed into a prime (1022021102129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88950745 + ... + 88962233.

It is an arithmetic number, because the mean of its divisors is an integer number (85208805900).

Almost surely, 2^{1022021102121} is an apocalyptic number.

It is an amenable number.

1022021102121 is a deficient number, since it is larger than the sum of its proper divisors (341319792279).

1022021102121 is a wasteful number, since it uses less digits than its factorization.

1022021102121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22968.

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

Adding to 1022021102121 its reverse (1212011202201), we get a palindrome (2234032304322).

The spelling of 1022021102121 in words is "one trillion, twenty-two billion, twenty-one million, one hundred two thousand, one hundred twenty-one".