101220100201121 has 4 divisors (see below), whose sum is σ = 110421927492144. Its totient is φ = 92018272910100.

The previous prime is 101220100201109. The next prime is 101220100201139. The reversal of 101220100201121 is 121102001022101.

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 101220100201121 - 2¹⁸ = 101220099938977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101220100201096 and 101220100201105.

It is not an unprimeable number, because it can be changed into a prime (101220100201321) 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, 4600913645495 + ... + 4600913645516.

It is an arithmetic number, because the mean of its divisors is an integer number (27605481873036).

Almost surely, 2^{101220100201121} is an apocalyptic number.

101220100201121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

101220100201121 is a deficient number, since it is larger than the sum of its proper divisors (9201827291023).

101220100201121 is an equidigital number, since it uses as much as digits as its factorization.

101220100201121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9201827291022.

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

Adding to 101220100201121 its reverse (121102001022101), we get a palindrome (222322101223222).

The spelling of 101220100201121 in words is "one hundred one trillion, two hundred twenty billion, one hundred million, two hundred one thousand, one hundred twenty-one".