211010102120 has 16 divisors (see below), whose sum is σ = 474772729860. Its totient is φ = 84404040832.

The previous prime is 211010102113. The next prime is 211010102123. The reversal of 211010102120 is 21201010112.

It can be written as a sum of positive squares in 2 ways, for example, as 210436882756 + 573219364 = 458734^2 + 23942^2 .

It is not an unprimeable number, because it can be changed into a prime (211010102123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2637626237 + ... + 2637626316.

Almost surely, 2^211010102120 is an apocalyptic number.

211010102120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211010102120 is an abundant number, since it is smaller than the sum of its proper divisors (263762627740).

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

211010102120 is a wasteful number, since it uses less digits than its factorization.

211010102120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5275252564 (or 5275252560 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 211010102120 its reverse (21201010112), we get a palindrome (232211112232).

The spelling of 211010102120 in words is "two hundred eleven billion, ten million, one hundred two thousand, one hundred twenty".