10202121112210 has 16 divisors (see below), whose sum is σ = 18365269570776. Its totient is φ = 4080525874048.

The previous prime is 10202121112181. The next prime is 10202121112223. The reversal of 10202121112210 is 1221112120201.

It can be written as a sum of positive squares in 4 ways, for example, as 2322664392841 + 7879456719369 = 1524029^2 + 2807037^2 .

It is a super-2 number, since 2×10202121112210² (a number of 27 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, 40188499 + ... + 40441558.

Almost surely, 2^{10202121112210} is an apocalyptic number.

10202121112210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10202121112210 is a deficient number, since it is larger than the sum of its proper divisors (8163148458566).

10202121112210 is a wasteful number, since it uses less digits than its factorization.

10202121112210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80642717.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 10202121112210 its reverse (1221112120201), we get a palindrome (11423233232411).

The spelling of 10202121112210 in words is "ten trillion, two hundred two billion, one hundred twenty-one million, one hundred twelve thousand, two hundred ten".