1022101210221 has 64 divisors (see below), whose sum is σ = 1728242976768. Its totient is φ = 522848971008.

The previous prime is 1022101210199. The next prime is 1022101210261. The reversal of 1022101210221 is 1220121012201.

It is not a de Polignac number, because 1022101210221 - 2⁷ = 1022101210093 is a prime.

It is a super-3 number, since 3×1022101210221³ (a number of 37 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1022101210221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022101210261) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2936206 + ... + 3265808.

It is an arithmetic number, because the mean of its divisors is an integer number (27003796512).

Almost surely, 2^{1022101210221} is an apocalyptic number.

It is an amenable number.

1022101210221 is a deficient number, since it is larger than the sum of its proper divisors (706141766547).

1022101210221 is a wasteful number, since it uses less digits than its factorization.

1022101210221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329970.

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

Adding to 1022101210221 its reverse (1220121012201), we get a palindrome (2242222222422).

The spelling of 1022101210221 in words is "one trillion, twenty-two billion, one hundred one million, two hundred ten thousand, two hundred twenty-one".