122150421 has 12 divisors (see below), whose sum is σ = 177365760. Its totient is φ = 81006120.

The previous prime is 122150383. The next prime is 122150429. The reversal of 122150421 is 124051221.

It is not a de Polignac number, because 122150421 - 2⁷ = 122150293 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122150394 and 122150403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122150429) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33811 + ... + 37248.

It is an arithmetic number, because the mean of its divisors is an integer number (14780480).

Almost surely, 2^122150421 is an apocalyptic number.

It is an amenable number.

122150421 is a deficient number, since it is larger than the sum of its proper divisors (55215339).

122150421 is a wasteful number, since it uses less digits than its factorization.

122150421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71256 (or 71253 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 122150421 is about 11052.1681583298. The cubic root of 122150421 is about 496.1713185621.

The spelling of 122150421 in words is "one hundred twenty-two million, one hundred fifty thousand, four hundred twenty-one".