1222010001021 has 8 divisors (see below), whose sum is σ = 1645478813664. Its totient is φ = 806607261200.

The previous prime is 1222010000983. The next prime is 1222010001031. The reversal of 1222010001021 is 1201000102221.

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

It is a cyclic number.

It is not a de Polignac number, because 1222010001021 - 2¹¹ = 1222009998973 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1222010000988 and 1222010001006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222010001031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2016517851 + ... + 2016518456.

It is an arithmetic number, because the mean of its divisors is an integer number (205684851708).

Almost surely, 2^{1222010001021} is an apocalyptic number.

It is an amenable number.

1222010001021 is a deficient number, since it is larger than the sum of its proper divisors (423468812643).

1222010001021 is a wasteful number, since it uses less digits than its factorization.

1222010001021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4033036411.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1222010001021 its reverse (1201000102221), we get a palindrome (2423010103242).

The spelling of 1222010001021 in words is "one trillion, two hundred twenty-two billion, ten million, one thousand, twenty-one".