211231120152 has 64 divisors (see below), whose sum is σ = 569112132960. Its totient is φ = 64946995200.

The previous prime is 211231120151. The next prime is 211231120211. The reversal of 211231120152 is 251021132112.

It is a super-2 number, since 2×211231120152² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211231120151) 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, 185752 + ... + 675992.

Almost surely, 2^211231120152 is an apocalyptic number.

It is an amenable number.

211231120152 is an abundant number, since it is smaller than the sum of its proper divisors (357881012808).

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

211231120152 is a wasteful number, since it uses less digits than its factorization.

211231120152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491644 (or 491640 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 21.

Adding to 211231120152 its reverse (251021132112), we get a palindrome (462252252264).

The spelling of 211231120152 in words is "two hundred eleven billion, two hundred thirty-one million, one hundred twenty thousand, one hundred fifty-two".