1021230201001 has 4 divisors (see below), whose sum is σ = 1065631514112. Its totient is φ = 976828887892.

The previous prime is 1021230200983. The next prime is 1021230201007. The reversal of 1021230201001 is 1001020321201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1021230201001 - 2⁹ = 1021230200489 is a prime.

It is a super-2 number, since 2×1021230201001² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1021230201007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22200656521 + ... + 22200656566.

It is an arithmetic number, because the mean of its divisors is an integer number (266407878528).

Almost surely, 2^{1021230201001} is an apocalyptic number.

It is an amenable number.

1021230201001 is a deficient number, since it is larger than the sum of its proper divisors (44401313111).

1021230201001 is an equidigital number, since it uses as much as digits as its factorization.

1021230201001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44401313110.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 1021230201001 its reverse (1001020321201), we get a palindrome (2022250522202).

The spelling of 1021230201001 in words is "one trillion, twenty-one billion, two hundred thirty million, two hundred one thousand, one".