101211121221023 has 8 divisors (see below), whose sum is σ = 110412323700096. Its totient is φ = 92009950651800.

The previous prime is 101211121220941. The next prime is 101211121221029. The reversal of 101211121221023 is 320122121112101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101211121221023 is a prime.

It is a super-2 number, since 2×101211121221023² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 101211121220986 and 101211121221004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101211121221029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1086761 + ... + 14268962.

It is an arithmetic number, because the mean of its divisors is an integer number (13801540462512).

Almost surely, 2^{101211121221023} is an apocalyptic number.

101211121221023 is a deficient number, since it is larger than the sum of its proper divisors (9201202479073).

101211121221023 is a wasteful number, since it uses less digits than its factorization.

101211121221023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15954925.

The product of its (nonzero) digits is 96, while the sum is 20.

Adding to 101211121221023 its reverse (320122121112101), we get a palindrome (421333242333124).

The spelling of 101211121221023 in words is "one hundred one trillion, two hundred eleven billion, one hundred twenty-one million, two hundred twenty-one thousand, twenty-three".