1210012020111 has 16 divisors (see below), whose sum is σ = 1614045715200. Its totient is φ = 806326597440.

The previous prime is 1210012020073. The next prime is 1210012020143. The reversal of 1210012020111 is 1110202100121.

It is not a de Polignac number, because 1210012020111 - 2¹³ = 1210012011919 is a prime.

It is a super-3 number, since 3×1210012020111³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210012020181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100235206 + ... + 100247276.

It is an arithmetic number, because the mean of its divisors is an integer number (100877857200).

Almost surely, 2^{1210012020111} is an apocalyptic number.

1210012020111 is a deficient number, since it is larger than the sum of its proper divisors (404033695089).

1210012020111 is a wasteful number, since it uses less digits than its factorization.

1210012020111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23726.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1210012020111 its reverse (1110202100121), we get a palindrome (2320214120232).

The spelling of 1210012020111 in words is "one trillion, two hundred ten billion, twelve million, twenty thousand, one hundred eleven".