42051222031226 has 4 divisors (see below), whose sum is σ = 63076833046842. Its totient is φ = 21025611015612.

The previous prime is 42051222031223. The next prime is 42051222031267. The reversal of 42051222031226 is 62213022215024.

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., 21666222780601 + 20384999250625 = 4654699^2 + 4514975^2 .

It is a junction number, because it is equal to n+sod(n) for n = 42051222031192 and 42051222031201.

It is not an unprimeable number, because it can be changed into a prime (42051222031223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10512805507805 + ... + 10512805507808.

Almost surely, 2^{42051222031226} is an apocalyptic number.

42051222031226 is a deficient number, since it is larger than the sum of its proper divisors (21025611015616).

42051222031226 is a wasteful number, since it uses less digits than its factorization.

42051222031226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21025611015615.

The product of its (nonzero) digits is 23040, while the sum is 32.

The spelling of 42051222031226 in words is "forty-two trillion, fifty-one billion, two hundred twenty-two million, thirty-one thousand, two hundred twenty-six".