2137220742562 has 4 divisors (see below), whose sum is σ = 3205831113846. Its totient is φ = 1068610371280.

The previous prime is 2137220742493. The next prime is 2137220742571. The reversal of 2137220742562 is 2652470227312.

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., 2101140119961 + 36080622601 = 1449531^2 + 189949^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 534305185639 + ... + 534305185642.

Almost surely, 2^{2137220742562} is an apocalyptic number.

2137220742562 is a deficient number, since it is larger than the sum of its proper divisors (1068610371284).

2137220742562 is a wasteful number, since it uses less digits than its factorization.

2137220742562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1068610371283.

The product of its (nonzero) digits is 564480, while the sum is 43.

Adding to 2137220742562 its reverse (2652470227312), we get a palindrome (4789690969874).

It can be divided in two parts, 2137220 and 742562, that added together give a palindrome (2879782).

The spelling of 2137220742562 in words is "two trillion, one hundred thirty-seven billion, two hundred twenty million, seven hundred forty-two thousand, five hundred sixty-two".