10202121111010 has 32 divisors (see below), whose sum is σ = 18998281695600. Its totient is φ = 3939874713600.

The previous prime is 10202121110983. The next prime is 10202121111023. The reversal of 10202121111010 is 1011112120201.

It is a happy number.

10202121111010 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 5109412680801 + 5092708430209 = 2260401^2 + 2256703^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3385210 + ... + 5644810.

Almost surely, 2^{10202121111010} is an apocalyptic number.

10202121111010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10202121111010 is a deficient number, since it is larger than the sum of its proper divisors (8796160584590).

10202121111010 is a wasteful number, since it uses less digits than its factorization.

10202121111010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2275206.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 10202121111010 its reverse (1011112120201), we get a palindrome (11213233231211).

The spelling of 10202121111010 in words is "ten trillion, two hundred two billion, one hundred twenty-one million, one hundred eleven thousand, ten".