10202121010 has 16 divisors (see below), whose sum is σ = 18373132800. Its totient is φ = 4078778416.

The previous prime is 10202121001. The next prime is 10202121019. The reversal of 10202121010 is 1012120201.

It is an interprime number because it is at equal distance from previous prime (10202121001) and next prime (10202121019).

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (10202121019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 237970 + ... + 277549.

It is an arithmetic number, because the mean of its divisors is an integer number (1148320800).

Almost surely, 2^10202121010 is an apocalyptic number.

10202121010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10202121010 is a deficient number, since it is larger than the sum of its proper divisors (8171011790).

10202121010 is a wasteful number, since it uses less digits than its factorization.

10202121010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517505.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 10202121010 its reverse (1012120201), we get a palindrome (11214241211).

The spelling of 10202121010 in words is "ten billion, two hundred two million, one hundred twenty-one thousand, ten".