122100202020216 has 64 divisors (see below), whose sum is σ = 356280224762880. Its totient is φ = 34143521535360.

The previous prime is 122100202020163. The next prime is 122100202020217. The reversal of 122100202020216 is 612020202001221.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 122100202020192 and 122100202020201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122100202020217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7731767815 + ... + 7731783606.

It is an arithmetic number, because the mean of its divisors is an integer number (5566878511920).

Almost surely, 2^{122100202020216} is an apocalyptic number.

It is an amenable number.

122100202020216 is an abundant number, since it is smaller than the sum of its proper divisors (234180022742664).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122100202020216 is a wasteful number, since it uses less digits than its factorization.

122100202020216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15463551484 (or 15463551480 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 122100202020216 its reverse (612020202001221), we get a palindrome (734120404021437).

The spelling of 122100202020216 in words is "one hundred twenty-two trillion, one hundred billion, two hundred two million, twenty thousand, two hundred sixteen".