202220101021 has 16 divisors (see below), whose sum is σ = 210151174464. Its totient is φ = 194439700224.

The previous prime is 202220101019. The next prime is 202220101033. The reversal of 202220101021 is 120101022202.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 202220101021 - 2¹ = 202220101019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202220100992 and 202220101010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202220101081) 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, 4451595 + ... + 4496791.

It is an arithmetic number, because the mean of its divisors is an integer number (13134448404).

Almost surely, 2^202220101021 is an apocalyptic number.

It is an amenable number.

202220101021 is a deficient number, since it is larger than the sum of its proper divisors (7931073443).

202220101021 is a wasteful number, since it uses less digits than its factorization.

202220101021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46860.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 202220101021 its reverse (120101022202), we get a palindrome (322321123223).

The spelling of 202220101021 in words is "two hundred two billion, two hundred twenty million, one hundred one thousand, twenty-one".