61422220131 has 16 divisors (see below), whose sum is σ = 82174176000. Its totient is φ = 40809443168.

The previous prime is 61422220129. The next prime is 61422220147. The reversal of 61422220131 is 13102222416.

61422220131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 61422220131 - 2¹ = 61422220129 is a prime.

It is a super-2 number, since 2×61422220131² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61422221131) 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, 1025725 + ... + 1083953.

It is an arithmetic number, because the mean of its divisors is an integer number (5135886000).

Almost surely, 2^61422220131 is an apocalyptic number.

61422220131 is a deficient number, since it is larger than the sum of its proper divisors (20751955869).

61422220131 is a wasteful number, since it uses less digits than its factorization.

61422220131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59418.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 61422220131 its reverse (13102222416), we get a palindrome (74524442547).

The spelling of 61422220131 in words is "sixty-one billion, four hundred twenty-two million, two hundred twenty thousand, one hundred thirty-one".