402111444122 has 4 divisors (see below), whose sum is σ = 603167166186. Its totient is φ = 201055722060.

The previous prime is 402111444113. The next prime is 402111444169. The reversal of 402111444122 is 221444111204.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 286986275521 + 115125168601 = 535711^2 + 339301^2 .

It is a super-2 number, since 2×402111444122² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 402111444091 and 402111444100.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100527861029 + ... + 100527861032.

Almost surely, 2^402111444122 is an apocalyptic number.

402111444122 is a deficient number, since it is larger than the sum of its proper divisors (201055722064).

402111444122 is a wasteful number, since it uses less digits than its factorization.

402111444122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201055722063.

The product of its (nonzero) digits is 2048, while the sum is 26.

Adding to 402111444122 its reverse (221444111204), we get a palindrome (623555555326).

The spelling of 402111444122 in words is "four hundred two billion, one hundred eleven million, four hundred forty-four thousand, one hundred twenty-two".