10191920202 has 32 divisors (see below), whose sum is σ = 23130604800. Its totient is φ = 3325022784.

The previous prime is 10191920197. The next prime is 10191920209. The reversal of 10191920202 is 20202919101.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (10191920209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2005327 + ... + 2010402.

It is an arithmetic number, because the mean of its divisors is an integer number (722831400).

Almost surely, 2^10191920202 is an apocalyptic number.

10191920202 is an abundant number, since it is smaller than the sum of its proper divisors (12938684598).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10191920202 is a wasteful number, since it uses less digits than its factorization.

10191920202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4015787 (or 4015781 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The spelling of 10191920202 in words is "ten billion, one hundred ninety-one million, nine hundred twenty thousand, two hundred two".