42051222031355 has 16 divisors (see below), whose sum is σ = 50554588590624. Its totient is φ = 33578898312960.

The previous prime is 42051222031321. The next prime is 42051222031367. The reversal of 42051222031355 is 55313022215024.

It is not a de Polignac number, because 42051222031355 - 2¹⁰ = 42051222030331 is a prime.

It is a super-2 number, since 2×42051222031355² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

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, 234937295 + ... + 235116215.

It is an arithmetic number, because the mean of its divisors is an integer number (3159661786914).

Almost surely, 2^{42051222031355} is an apocalyptic number.

42051222031355 is a deficient number, since it is larger than the sum of its proper divisors (8503366559269).

42051222031355 is a wasteful number, since it uses less digits than its factorization.

42051222031355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265406.

The product of its (nonzero) digits is 72000, while the sum is 35.

Adding to 42051222031355 its reverse (55313022215024), we get a palindrome (97364244246379).

The spelling of 42051222031355 in words is "forty-two trillion, fifty-one billion, two hundred twenty-two million, thirty-one thousand, three hundred fifty-five".