1212121201022 has 16 divisors (see below), whose sum is σ = 1855294318752. Its totient is φ = 593799724800.

The previous prime is 1212121201007. The next prime is 1212121201037. The reversal of 1212121201022 is 2201021212121.

It is an interprime number because it is at equal distance from previous prime (1212121201007) and next prime (1212121201037).

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, 27468683 + ... + 27512774.

It is an arithmetic number, because the mean of its divisors is an integer number (115955894922).

Almost surely, 2^{1212121201022} is an apocalyptic number.

1212121201022 is a deficient number, since it is larger than the sum of its proper divisors (643173117730).

1212121201022 is a wasteful number, since it uses less digits than its factorization.

1212121201022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54981683.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1212121201022 its reverse (2201021212121), we get a palindrome (3413142413143).

The spelling of 1212121201022 in words is "one trillion, two hundred twelve billion, one hundred twenty-one million, two hundred one thousand, twenty-two".