101220112211021 has 8 divisors (see below), whose sum is σ = 101313957648384. Its totient is φ = 101126268111600.

The previous prime is 101220112210957. The next prime is 101220112211047. The reversal of 101220112211021 is 120112211022101.

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

It is a cyclic number.

It is not a de Polignac number, because 101220112211021 - 2⁶ = 101220112210957 is a prime.

It is a super-2 number, since 2×101220112211021² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101220112211051) 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, 215318396 + ... + 215787978.

It is an arithmetic number, because the mean of its divisors is an integer number (12664244706048).

Almost surely, 2^{101220112211021} is an apocalyptic number.

It is an amenable number.

101220112211021 is a deficient number, since it is larger than the sum of its proper divisors (93845437363).

101220112211021 is a wasteful number, since it uses less digits than its factorization.

101220112211021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668971.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 101220112211021 its reverse (120112211022101), we get a palindrome (221332323233122).

The spelling of 101220112211021 in words is "one hundred one trillion, two hundred twenty billion, one hundred twelve million, two hundred eleven thousand, twenty-one".