102420122 has 16 divisors (see below), whose sum is σ = 175710912. Its totient is φ = 43860960.

The previous prime is 102420119. The next prime is 102420133. The reversal of 102420122 is 221024201.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 102420097 and 102420106.

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, 28118 + ... + 31550.

It is an arithmetic number, because the mean of its divisors is an integer number (10981932).

Almost surely, 2^102420122 is an apocalyptic number.

102420122 is a deficient number, since it is larger than the sum of its proper divisors (73290790).

102420122 is a wasteful number, since it uses less digits than its factorization.

102420122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5573.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 102420122 is about 10120.2827035612. The cubic root of 102420122 is about 467.8734804221.

Adding to 102420122 its reverse (221024201), we get a palindrome (323444323).

The spelling of 102420122 in words is "one hundred two million, four hundred twenty thousand, one hundred twenty-two".