122210122221020 has 24 divisors (see below), whose sum is σ = 258059164167168. Its totient is φ = 48613971268800.

The previous prime is 122210122221013. The next prime is 122210122221059. The reversal of 122210122221020 is 20122221012221.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 122210122220983 and 122210122221001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16879847516 + ... + 16879854755.

It is an arithmetic number, because the mean of its divisors is an integer number (10752465173632).

Almost surely, 2^{122210122221020} is an apocalyptic number.

122210122221020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122210122221020 is an abundant number, since it is smaller than the sum of its proper divisors (135849041946148).

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

122210122221020 is a wasteful number, since it uses less digits than its factorization.

122210122221020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33759702461 (or 33759702459 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 122210122221020 its reverse (20122221012221), we get a palindrome (142332343233241).

The spelling of 122210122221020 in words is "one hundred twenty-two trillion, two hundred ten billion, one hundred twenty-two million, two hundred twenty-one thousand, twenty".