20209191202 has 16 divisors (see below), whose sum is σ = 30627877824. Its totient is φ = 9999990000.

The previous prime is 20209191193. The next prime is 20209191253. The reversal of 20209191202 is 20219190202.

It is a super-2 number, since 2×20209191202² (a number of 21 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, 445177 + ... + 488467.

It is an arithmetic number, because the mean of its divisors is an integer number (1914242364).

Almost surely, 2^20209191202 is an apocalyptic number.

20209191202 is a deficient number, since it is larger than the sum of its proper divisors (10418686622).

20209191202 is a wasteful number, since it uses less digits than its factorization.

20209191202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45705.

The product of its (nonzero) digits is 1296, while the sum is 28.

The spelling of 20209191202 in words is "twenty billion, two hundred nine million, one hundred ninety-one thousand, two hundred two".