2111121020210 has 8 divisors (see below), whose sum is σ = 3800017836396. Its totient is φ = 844448408080.

The previous prime is 2111121020161. The next prime is 2111121020249. The reversal of 2111121020210 is 120201211112.

It can be written as a sum of positive squares in 2 ways, for example, as 2105253000601 + 5868019609 = 1450949^2 + 76603^2 .

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

It is a super-2 number, since 2×2111121020210² (a number of 25 digits) contains 22 as substring.

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, 105556051001 + ... + 105556051020.

Almost surely, 2^{2111121020210} is an apocalyptic number.

2111121020210 is a deficient number, since it is larger than the sum of its proper divisors (1688896816186).

2111121020210 is a wasteful number, since it uses less digits than its factorization.

2111121020210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211112102028.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 2111121020210 its reverse (120201211112), we get a palindrome (2231322231322).

The spelling of 2111121020210 in words is "two trillion, one hundred eleven billion, one hundred twenty-one million, twenty thousand, two hundred ten".