212202120111 has 32 divisors (see below), whose sum is σ = 297665280000. Its totient is φ = 134280182400.

The previous prime is 212202120107. The next prime is 212202120157. The reversal of 212202120111 is 111021202212.

It is not a de Polignac number, because 212202120111 - 2² = 212202120107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212202120211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28293640 + ... + 28301138.

It is an arithmetic number, because the mean of its divisors is an integer number (9302040000).

Almost surely, 2^212202120111 is an apocalyptic number.

212202120111 is a deficient number, since it is larger than the sum of its proper divisors (85463159889).

212202120111 is a wasteful number, since it uses less digits than its factorization.

212202120111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13327.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 212202120111 its reverse (111021202212), we get a palindrome (323223322323).

The spelling of 212202120111 in words is "two hundred twelve billion, two hundred two million, one hundred twenty thousand, one hundred eleven".