10202021010 has 64 divisors (see below), whose sum is σ = 27220752000. Its totient is φ = 2719002816.

The previous prime is 10202020973. The next prime is 10202021023. The reversal of 10202021010 is 1012020201.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 10202020983 and 10202021001.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 516537 + ... + 535923.

It is an arithmetic number, because the mean of its divisors is an integer number (425324250).

Almost surely, 2^10202021010 is an apocalyptic number.

10202021010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10202021010 is an abundant number, since it is smaller than the sum of its proper divisors (17018730990).

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

10202021010 is a wasteful number, since it uses less digits than its factorization.

10202021010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21352 (or 21346 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 10202021010 its reverse (1012020201), we get a palindrome (11214041211).

The spelling of 10202021010 in words is "ten billion, two hundred two million, twenty-one thousand, ten".