10202121110212 has 6 divisors (see below), whose sum is σ = 17853711942878. Its totient is φ = 5101060555104.

The previous prime is 10202121110183. The next prime is 10202121110221. The reversal of 10202121110212 is 21201112120201.

It can be written as a sum of positive squares in only one way, i.e., 9193108896196 + 1009012214016 = 3032014^2 + 1004496^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1275265138773 + ... + 1275265138780.

Almost surely, 2^{10202121110212} is an apocalyptic number.

It is an amenable number.

10202121110212 is a deficient number, since it is larger than the sum of its proper divisors (7651590832666).

10202121110212 is a wasteful number, since it uses less digits than its factorization.

10202121110212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2550530277557 (or 2550530277555 counting only the distinct ones).

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

Adding to 10202121110212 its reverse (21201112120201), we get a palindrome (31403233230413).

The spelling of 10202121110212 in words is "ten trillion, two hundred two billion, one hundred twenty-one million, one hundred ten thousand, two hundred twelve".