10202121111012 has 48 divisors (see below), whose sum is σ = 25265110534272. Its totient is φ = 3193062888960.

The previous prime is 10202121110983. The next prime is 10202121111023. The reversal of 10202121111012 is 21011112120201.

It is a happy number.

10202121111012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 10202121110982 and 10202121111000.

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, 59308888 + ... + 59480655.

It is an arithmetic number, because the mean of its divisors is an integer number (526356469464).

Almost surely, 2^{10202121111012} is an apocalyptic number.

10202121111012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10202121111012 is an abundant number, since it is smaller than the sum of its proper divisors (15062989423260).

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

10202121111012 is a wasteful number, since it uses less digits than its factorization.

10202121111012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118789988 (or 118789986 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 10202121111012 its reverse (21011112120201), we get a palindrome (31213233231213).

The spelling of 10202121111012 in words is "ten trillion, two hundred two billion, one hundred twenty-one million, one hundred eleven thousand, twelve".