1020211010121 has 8 divisors (see below), whose sum is σ = 1360332254304. Its totient is φ = 680115219680.

The previous prime is 1020211010057. The next prime is 1020211010123. The reversal of 1020211010121 is 1210101120201.

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 1020211010121 - 2⁶ = 1020211010057 is a prime.

It is a super-2 number, since 2×1020211010121² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1020211010097 and 1020211010106.

It is not an unprimeable number, because it can be changed into a prime (1020211010123) 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, 6269715 + ... + 6430376.

It is an arithmetic number, because the mean of its divisors is an integer number (170041531788).

Almost surely, 2^{1020211010121} is an apocalyptic number.

It is an amenable number.

1020211010121 is a deficient number, since it is larger than the sum of its proper divisors (340121244183).

1020211010121 is a wasteful number, since it uses less digits than its factorization.

1020211010121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12726871.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1020211010121 its reverse (1210101120201), we get a palindrome (2230312130322).

The spelling of 1020211010121 in words is "one trillion, twenty billion, two hundred eleven million, ten thousand, one hundred twenty-one".