1010020220121 has 16 divisors (see below), whose sum is σ = 1469787298560. Its totient is φ = 611855559120.

The previous prime is 1010020220101. The next prime is 1010020220149. The reversal of 1010020220121 is 1210220200101.

It is not a de Polignac number, because 1010020220121 - 2⁵ = 1010020220089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1010020220097 and 1010020220106.

It is not an unprimeable number, because it can be changed into a prime (1010020220101) 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, 6873891 + ... + 7019288.

It is an arithmetic number, because the mean of its divisors is an integer number (91861706160).

Almost surely, 2^{1010020220121} is an apocalyptic number.

1010020220121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1010020220121 is a deficient number, since it is larger than the sum of its proper divisors (459767078439).

1010020220121 is a wasteful number, since it uses less digits than its factorization.

1010020220121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13895396.

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

Adding to 1010020220121 its reverse (1210220200101), we get a palindrome (2220240420222).

The spelling of 1010020220121 in words is "one trillion, ten billion, twenty million, two hundred twenty thousand, one hundred twenty-one".