122020101 has 40 divisors (see below), whose sum is σ = 220587840. Its totient is φ = 65619072.

The previous prime is 122020097. The next prime is 122020127. The reversal of 122020101 is 101020221.

It is not a de Polignac number, because 122020101 - 2² = 122020097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122020001) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3310 + ... + 15968.

It is an arithmetic number, because the mean of its divisors is an integer number (5514696).

Almost surely, 2^122020101 is an apocalyptic number.

It is an amenable number.

122020101 is a deficient number, since it is larger than the sum of its proper divisors (98567739).

122020101 is a wasteful number, since it uses less digits than its factorization.

122020101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12695 (or 12686 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 122020101 is about 11046.2709092254. The cubic root of 122020101 is about 495.9948038066.

Adding to 122020101 its reverse (101020221), we get a palindrome (223040322).

It can be divided in two parts, 1220 and 20101, that added together give a triangular number (21321 = T₂₀₆).

The spelling of 122020101 in words is "one hundred twenty-two million, twenty thousand, one hundred one".