102210212020122 has 48 divisors (see below), whose sum is σ = 227444934467400. Its totient is φ = 33148646914176.

The previous prime is 102210212020067. The next prime is 102210212020123. The reversal of 102210212020122 is 221020212012201.

It is a happy number.

102210212020122 is a `hidden beast` number, since 10 + 221 + 0 + 212 + 0 + 201 + 22 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 88570478393721 + 13639733626401 = 9411189^2 + 3693201^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 102210212020095 and 102210212020104.

It is not an unprimeable number, because it can be changed into a prime (102210212020123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35465004 + ... + 38238552.

Almost surely, 2^{102210212020122} is an apocalyptic number.

102210212020122 is an abundant number, since it is smaller than the sum of its proper divisors (125234722447278).

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

102210212020122 is a wasteful number, since it uses less digits than its factorization.

102210212020122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2828927 (or 2828924 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 102210212020122 its reverse (221020212012201), we get a palindrome (323230424032323).

The spelling of 102210212020122 in words is "one hundred two trillion, two hundred ten billion, two hundred twelve million, twenty thousand, one hundred twenty-two".