211220201221112 has 32 divisors (see below), whose sum is σ = 416882685171600. Its totient is φ = 100051504084224.

The previous prime is 211220201221091. The next prime is 211220201221163. The reversal of 211220201221112 is 211122102022112.

It is a super-2 number, since 2×211220201221112² (a number of 29 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 7 ways as a sum of consecutive naturals, for example, 166252988 + ... + 167518644.

Almost surely, 2^{211220201221112} is an apocalyptic number.

It is an amenable number.

211220201221112 is a deficient number, since it is larger than the sum of its proper divisors (205662483950488).

211220201221112 is a wasteful number, since it uses less digits than its factorization.

211220201221112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2363615 (or 2363611 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 211220201221112 its reverse (211122102022112), we get a palindrome (422342303243224).

The spelling of 211220201221112 in words is "two hundred eleven trillion, two hundred twenty billion, two hundred one million, two hundred twenty-one thousand, one hundred twelve".