2021212101102 has 16 divisors (see below), whose sum is σ = 4052307884880. Its totient is φ = 672090086592.

The previous prime is 2021212101079. The next prime is 2021212101107. The reversal of 2021212101102 is 2011012121202.

It is a super-2 number, since 2×2021212101102² (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 (2021212101107) 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, 411817453 + ... + 411822360.

It is an arithmetic number, because the mean of its divisors is an integer number (253269242805).

Almost surely, 2^{2021212101102} is an apocalyptic number.

2021212101102 is an abundant number, since it is smaller than the sum of its proper divisors (2031095783778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2021212101102 is a wasteful number, since it uses less digits than its factorization.

2021212101102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823640227.

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

Adding to 2021212101102 its reverse (2011012121202), we get a palindrome (4032224222304).

The spelling of 2021212101102 in words is "two trillion, twenty-one billion, two hundred twelve million, one hundred one thousand, one hundred two".