42001222209977 has 16 divisors (see below), whose sum is σ = 43146069120000. Its totient is φ = 40871529707904.

The previous prime is 42001222209901. The next prime is 42001222209997. The reversal of 42001222209977 is 77990222210024.

It is a cyclic number.

It is not a de Polignac number, because 42001222209977 - 2³² = 41996927242681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42001222209997) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3633128 + ... + 9859110.

It is an arithmetic number, because the mean of its divisors is an integer number (2696629320000).

Almost surely, 2^{42001222209977} is an apocalyptic number.

It is an amenable number.

42001222209977 is a deficient number, since it is larger than the sum of its proper divisors (1144846910023).

42001222209977 is a wasteful number, since it uses less digits than its factorization.

42001222209977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6227200.

The product of its (nonzero) digits is 508032, while the sum is 47.

Adding to 42001222209977 its sum of digits (47), we get a palindrome (42001222210024).

The spelling of 42001222209977 in words is "forty-two trillion, one billion, two hundred twenty-two million, two hundred nine thousand, nine hundred seventy-seven".