1221010210022 has 8 divisors (see below), whose sum is σ = 1831561242336. Its totient is φ = 610489795912.

The previous prime is 1221010209953. The next prime is 1221010210141. The reversal of 1221010210022 is 2200120101221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1221010209979 and 1221010210006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7554593 + ... + 7714524.

It is an arithmetic number, because the mean of its divisors is an integer number (228945155292).

Almost surely, 2^{1221010210022} is an apocalyptic number.

1221010210022 is a deficient number, since it is larger than the sum of its proper divisors (610551032314).

1221010210022 is a wasteful number, since it uses less digits than its factorization.

1221010210022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15309102.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1221010210022 its reverse (2200120101221), we get a palindrome (3421130311243).

The spelling of 1221010210022 in words is "one trillion, two hundred twenty-one billion, ten million, two hundred ten thousand, twenty-two".