1212121001022 has 16 divisors (see below), whose sum is σ = 2427444444432. Its totient is φ = 403506593280.

The previous prime is 1212121001017. The next prime is 1212121001053. The reversal of 1212121001022 is 2201001212121.

It is a super-2 number, since 2×1212121001022² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1212121000992 and 1212121001010.

It is a congruent number.

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, 133430179 + ... + 133439262.

It is an arithmetic number, because the mean of its divisors is an integer number (151715277777).

Almost surely, 2^{1212121001022} is an apocalyptic number.

1212121001022 is an abundant number, since it is smaller than the sum of its proper divisors (1215323443410).

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

1212121001022 is a wasteful number, since it uses less digits than its factorization.

1212121001022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266870203.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1212121001022 its reverse (2201001212121), we get a palindrome (3413122213143).

The spelling of 1212121001022 in words is "one trillion, two hundred twelve billion, one hundred twenty-one million, one thousand, twenty-two".