201211231310022 has 128 divisors (see below), whose sum is σ = 410795946316800. Its totient is φ = 65692321744896.

The previous prime is 201211231310017. The next prime is 201211231310051. The reversal of 201211231310022 is 220013132112102.

It is a super-2 number, since 2×201211231310022² (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 63 ways as a sum of consecutive naturals, for example, 36537355393 + ... + 36537360899.

It is an arithmetic number, because the mean of its divisors is an integer number (3209343330600).

Almost surely, 2^{201211231310022} is an apocalyptic number.

201211231310022 is an abundant number, since it is smaller than the sum of its proper divisors (209584715006778).

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

201211231310022 is a wasteful number, since it uses less digits than its factorization.

201211231310022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7150.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 201211231310022 its reverse (220013132112102), we get a palindrome (421224363422124).

The spelling of 201211231310022 in words is "two hundred one trillion, two hundred eleven billion, two hundred thirty-one million, three hundred ten thousand, twenty-two".