10121222020212 has 144 divisors (see below), whose sum is σ = 26628642680640. Its totient is φ = 3239175744000.

The previous prime is 10121222020187. The next prime is 10121222020223. The reversal of 10121222020212 is 21202022212101.

It is a happy number.

10121222020212 is a `hidden beast` number, since 1 + 0 + 1 + 212 + 220 + 20 + 212 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21499512 + ... + 21965232.

Almost surely, 2^{10121222020212} is an apocalyptic number.

10121222020212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10121222020212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13314321340320).

10121222020212 is an abundant number, since it is smaller than the sum of its proper divisors (16507420660428).

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

10121222020212 is a wasteful number, since it uses less digits than its factorization.

10121222020212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466014 (or 466009 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 10121222020212 its reverse (21202022212101), we get a palindrome (31323244232313).

The spelling of 10121222020212 in words is "ten trillion, one hundred twenty-one billion, two hundred twenty-two million, twenty thousand, two hundred twelve".