101220201100121 has 4 divisors (see below), whose sum is σ = 101220233730000. Its totient is φ = 101220168470244.

The previous prime is 101220201100103. The next prime is 101220201100153. The reversal of 101220201100121 is 121001102022101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 101220201100121 - 2¹⁴ = 101220201083737 is a prime.

It is a super-2 number, since 2×101220201100121² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101220201100096 and 101220201100105.

It is not an unprimeable number, because it can be changed into a prime (101220201160121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11107871 + ... + 18050628.

It is an arithmetic number, because the mean of its divisors is an integer number (25305058432500).

Almost surely, 2^{101220201100121} is an apocalyptic number.

It is an amenable number.

101220201100121 is a deficient number, since it is larger than the sum of its proper divisors (32629879).

101220201100121 is an equidigital number, since it uses as much as digits as its factorization.

101220201100121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32629878.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 101220201100121 its reverse (121001102022101), we get a palindrome (222221303122222).

The spelling of 101220201100121 in words is "one hundred one trillion, two hundred twenty billion, two hundred one million, one hundred thousand, one hundred twenty-one".