402010122 has 32 divisors (see below), whose sum is σ = 836124480. Its totient is φ = 128701440.

The previous prime is 402010109. The next prime is 402010153. The reversal of 402010122 is 221010204.

It is a super-2 number, since 2×402010122² = 323224276380909768, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 402010098 and 402010107.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27597 + ... + 39567.

It is an arithmetic number, because the mean of its divisors is an integer number (26128890).

Almost surely, 2^402010122 is an apocalyptic number.

402010122 is an abundant number, since it is smaller than the sum of its proper divisors (434114358).

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

402010122 is a wasteful number, since it uses less digits than its factorization.

402010122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12198.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 402010122 is about 20050.1900739120. The cubic root of 402010122 is about 738.0384634884.

Adding to 402010122 its reverse (221010204), we get a palindrome (623020326).

The spelling of 402010122 in words is "four hundred two million, ten thousand, one hundred twenty-two".