1022220101021 has 16 divisors (see below), whose sum is σ = 1175044952064. Its totient is φ = 871108228224.

The previous prime is 1022220100987. The next prime is 1022220101053. The reversal of 1022220101021 is 1201010222201.

It is a cyclic number.

It is not a de Polignac number, because 1022220101021 - 2³⁸ = 747342194077 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1022220100987 and 1022220101005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022220131021) 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, 230075 + ... + 1448231.

It is an arithmetic number, because the mean of its divisors is an integer number (73440309504).

Almost surely, 2^{1022220101021} is an apocalyptic number.

It is an amenable number.

1022220101021 is a deficient number, since it is larger than the sum of its proper divisors (152824851043).

1022220101021 is a wasteful number, since it uses less digits than its factorization.

1022220101021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1218860.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1022220101021 its reverse (1201010222201), we get a palindrome (2223230323222).

The spelling of 1022220101021 in words is "one trillion, twenty-two billion, two hundred twenty million, one hundred one thousand, twenty-one".