2021211202102 has 16 divisors (see below), whose sum is σ = 3068950357872. Its totient is φ = 998232556320.

The previous prime is 2021211202063. The next prime is 2021211202103. The reversal of 2021211202102 is 2012021121202.

It is a happy number.

It is a super-2 number, since 2×2021211202102² (a number of 25 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 356349 + ... + 2041912.

It is an arithmetic number, because the mean of its divisors is an integer number (191809397367).

Almost surely, 2^{2021211202102} is an apocalyptic number.

2021211202102 is a deficient number, since it is larger than the sum of its proper divisors (1047739155770).

2021211202102 is a wasteful number, since it uses less digits than its factorization.

2021211202102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2403423.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2021211202102 its reverse (2012021121202), we get a palindrome (4033232323304).

The spelling of 2021211202102 in words is "two trillion, twenty-one billion, two hundred eleven million, two hundred two thousand, one hundred two".