100220121012021 has 16 divisors (see below), whose sum is σ = 140664921051840. Its totient is φ = 63294622594560.

The previous prime is 100220121012019. The next prime is 100220121012023. The reversal of 100220121012021 is 120210121022001.

It is an interprime number because it is at equal distance from previous prime (100220121012019) and next prime (100220121012023).

It is not a de Polignac number, because 100220121012021 - 2¹ = 100220121012019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100220121012023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30302140 + ... + 33446373.

It is an arithmetic number, because the mean of its divisors is an integer number (8791557565740).

Almost surely, 2^{100220121012021} is an apocalyptic number.

It is an amenable number.

100220121012021 is a deficient number, since it is larger than the sum of its proper divisors (40444800039819).

100220121012021 is a wasteful number, since it uses less digits than its factorization.

100220121012021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63776116.

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

Adding to 100220121012021 its reverse (120210121022001), we get a palindrome (220430242034022).

The spelling of 100220121012021 in words is "one hundred trillion, two hundred twenty billion, one hundred twenty-one million, twelve thousand, twenty-one".