221202113402 has 16 divisors (see below), whose sum is σ = 335424136320. Its totient is φ = 109396629552.

The previous prime is 221202113387. The next prime is 221202113441. The reversal of 221202113402 is 204311202122.

It is a super-2 number, since 2×221202113402² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 467093 + ... + 812760.

It is an arithmetic number, because the mean of its divisors is an integer number (20964008520).

Almost surely, 2^221202113402 is an apocalyptic number.

221202113402 is a deficient number, since it is larger than the sum of its proper divisors (114222022918).

221202113402 is a wasteful number, since it uses less digits than its factorization.

221202113402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1280797.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 221202113402 its reverse (204311202122), we get a palindrome (425513315524).

The spelling of 221202113402 in words is "two hundred twenty-one billion, two hundred two million, one hundred thirteen thousand, four hundred two".