1021022210121 has 16 divisors (see below), whose sum is σ = 1438959762240. Its totient is φ = 642180372480.

The previous prime is 1021022210107. The next prime is 1021022210177. The reversal of 1021022210121 is 1210122201201.

1021022210121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1021022210121 - 2¹⁵ = 1021022177353 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1021022210121.

It is not an unprimeable number, because it can be changed into a prime (1021022260121) 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, 37149480 + ... + 37176953.

It is an arithmetic number, because the mean of its divisors is an integer number (89934985140).

Almost surely, 2^{1021022210121} is an apocalyptic number.

It is an amenable number.

1021022210121 is a deficient number, since it is larger than the sum of its proper divisors (417937552119).

1021022210121 is a wasteful number, since it uses less digits than its factorization.

1021022210121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74326696.

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

Adding to 1021022210121 its reverse (1210122201201), we get a palindrome (2231144411322).

The spelling of 1021022210121 in words is "one trillion, twenty-one billion, twenty-two million, two hundred ten thousand, one hundred twenty-one".