2021011111102 has 8 divisors (see below), whose sum is σ = 3037741548336. Its totient is φ = 1008430594992.

The previous prime is 2021011111081. The next prime is 2021011111183. The reversal of 2021011111102 is 2011111101202.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2021011111102² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1037479063 + ... + 1037481010.

It is an arithmetic number, because the mean of its divisors is an integer number (379717693542).

Almost surely, 2^{2021011111102} is an apocalyptic number.

2021011111102 is a deficient number, since it is larger than the sum of its proper divisors (1016730437234).

2021011111102 is a wasteful number, since it uses less digits than its factorization.

2021011111102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2074960562.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 2021011111102 its reverse (2011111101202), we get a palindrome (4032122212304).

The spelling of 2021011111102 in words is "two trillion, twenty-one billion, eleven million, one hundred eleven thousand, one hundred two".