101211221022 has 32 divisors (see below), whose sum is σ = 207913588512. Its totient is φ = 32822060544.

The previous prime is 101211221021. The next prime is 101211221057. The reversal of 101211221022 is 220122112101.

It is a super-2 number, since 2×101211221022² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 101211220992 and 101211221010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101211221021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3550458 + ... + 3578850.

It is an arithmetic number, because the mean of its divisors is an integer number (6497299641).

Almost surely, 2^101211221022 is an apocalyptic number.

101211221022 is an abundant number, since it is smaller than the sum of its proper divisors (106702367490).

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

101211221022 is a wasteful number, since it uses less digits than its factorization.

101211221022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44492.

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

Adding to 101211221022 its reverse (220122112101), we get a palindrome (321333333123).

The spelling of 101211221022 in words is "one hundred one billion, two hundred eleven million, two hundred twenty-one thousand, twenty-two".