1201002022101 has 24 divisors (see below), whose sum is σ = 1862983503840. Its totient is φ = 686211396192.

The previous prime is 1201002022081. The next prime is 1201002022133. The reversal of 1201002022101 is 1012202001021.

It is not a de Polignac number, because 1201002022101 - 2²³ = 1200993633493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201002022151) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 905835 + ... + 1795143.

It is an arithmetic number, because the mean of its divisors is an integer number (77624312660).

Almost surely, 2^{1201002022101} is an apocalyptic number.

It is an amenable number.

1201002022101 is a deficient number, since it is larger than the sum of its proper divisors (661981481739).

1201002022101 is an equidigital number, since it uses as much as digits as its factorization.

1201002022101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 898513 (or 898506 counting only the distinct ones).

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

Adding to 1201002022101 its reverse (1012202001021), we get a palindrome (2213204023122).

The spelling of 1201002022101 in words is "one trillion, two hundred one billion, two million, twenty-two thousand, one hundred one".