1021201020122 has 16 divisors (see below), whose sum is σ = 1535609087712. Its totient is φ = 509332815600.

The previous prime is 1021201020107. The next prime is 1021201020143. The reversal of 1021201020122 is 2210201021201.

It is a junction number, because it is equal to n+sod(n) for n = 1021201020097 and 1021201020106.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1000613 + ... + 1744599.

It is an arithmetic number, because the mean of its divisors is an integer number (95975567982).

Almost surely, 2^{1021201020122} is an apocalyptic number.

1021201020122 is a deficient number, since it is larger than the sum of its proper divisors (514408067590).

1021201020122 is a wasteful number, since it uses less digits than its factorization.

1021201020122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745693.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1021201020122 its reverse (2210201021201), we get a palindrome (3231402041323).

The spelling of 1021201020122 in words is "one trillion, twenty-one billion, two hundred one million, twenty thousand, one hundred twenty-two".