2021211202101 has 32 divisors (see below), whose sum is σ = 3379441685760. Its totient is φ = 1046017649664.

The previous prime is 2021211202063. The next prime is 2021211202103. The reversal of 2021211202101 is 1012021121202.

It is not a de Polignac number, because 2021211202101 - 2²¹ = 2021209104949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021211202103) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69831796 + ... + 69860733.

It is an arithmetic number, because the mean of its divisors is an integer number (105607552680).

Almost surely, 2^{2021211202101} is an apocalyptic number.

2021211202101 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2021211202101 is a deficient number, since it is larger than the sum of its proper divisors (1358230483659).

2021211202101 is a wasteful number, since it uses less digits than its factorization.

2021211202101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139692605.

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

Adding to 2021211202101 its reverse (1012021121202), we get a palindrome (3033232323303).

The spelling of 2021211202101 in words is "two trillion, twenty-one billion, two hundred eleven million, two hundred two thousand, one hundred one".