2215321402354 has 4 divisors (see below), whose sum is σ = 3322982103534. Its totient is φ = 1107660701176.

The previous prime is 2215321402331. The next prime is 2215321402421. The reversal of 2215321402354 is 4532041235122.

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., 2133419548129 + 81901854225 = 1460623^2 + 286185^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 553830350587 + ... + 553830350590.

Almost surely, 2^{2215321402354} is an apocalyptic number.

2215321402354 is a deficient number, since it is larger than the sum of its proper divisors (1107660701180).

2215321402354 is a wasteful number, since it uses less digits than its factorization.

2215321402354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1107660701179.

The product of its (nonzero) digits is 57600, while the sum is 34.

Adding to 2215321402354 its reverse (4532041235122), we get a palindrome (6747362637476).

The spelling of 2215321402354 in words is "two trillion, two hundred fifteen billion, three hundred twenty-one million, four hundred two thousand, three hundred fifty-four".