2021211111102 has 32 divisors (see below), whose sum is σ = 4045712253984. Its totient is φ = 673188864000.

The previous prime is 2021211111083. The next prime is 2021211111121. The reversal of 2021211111102 is 2011111121202.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2021211111083) and next prime (2021211111121).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60280102 + ... + 60313622.

It is an arithmetic number, because the mean of its divisors is an integer number (126428507937).

Almost surely, 2^{2021211111102} is an apocalyptic number.

2021211111102 is an abundant number, since it is smaller than the sum of its proper divisors (2024501142882).

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

2021211111102 is a wasteful number, since it uses less digits than its factorization.

2021211111102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41404.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 2021211111102 its reverse (2011111121202), we get a palindrome (4032322232304).

The spelling of 2021211111102 in words is "two trillion, twenty-one billion, two hundred eleven million, one hundred eleven thousand, one hundred two".