420111213770 has 32 divisors (see below), whose sum is σ = 780298532496. Its totient is φ = 162749132800.

The previous prime is 420111213757. The next prime is 420111213803. The reversal of 420111213770 is 77312111024.

It can be written as a sum of positive squares in 8 ways, for example, as 120248739361 + 299862474409 = 346769^2 + 547597^2 .

It is a super-2 number, since 2×420111213770² (a number of 24 digits) contains 22 as substring.

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, 3683471 + ... + 3795810.

Almost surely, 2^420111213770 is an apocalyptic number.

420111213770 is a deficient number, since it is larger than the sum of its proper divisors (360187318726).

420111213770 is a wasteful number, since it uses less digits than its factorization.

420111213770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7479466.

The product of its (nonzero) digits is 2352, while the sum is 29.

Adding to 420111213770 its reverse (77312111024), we get a palindrome (497423324794).

The spelling of 420111213770 in words is "four hundred twenty billion, one hundred eleven million, two hundred thirteen thousand, seven hundred seventy".