1022002220121 has 8 divisors (see below), whose sum is σ = 1388380374720. Its totient is φ = 668479439472.

The previous prime is 1022002220087. The next prime is 1022002220153. The reversal of 1022002220121 is 1210222002201.

1022002220121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 1022002220121 - 2¹³ = 1022002211929 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1022002220121.

It is not an unprimeable number, because it can be changed into a prime (1022002220321) 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, 3213843301 + ... + 3213843618.

It is an arithmetic number, because the mean of its divisors is an integer number (173547546840).

Almost surely, 2^{1022002220121} is an apocalyptic number.

It is an amenable number.

1022002220121 is a deficient number, since it is larger than the sum of its proper divisors (366378154599).

1022002220121 is an equidigital number, since it uses as much as digits as its factorization.

1022002220121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6427686975.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 1022002220121 its reverse (1210222002201), we get a palindrome (2232224222322).

The spelling of 1022002220121 in words is "one trillion, twenty-two billion, two million, two hundred twenty thousand, one hundred twenty-one".