10120022012021 has 8 divisors (see below), whose sum is σ = 10436662835544. Its totient is φ = 9805651015680.

The previous prime is 10120022012003. The next prime is 10120022012029. The reversal of 10120022012021 is 12021022002101.

It can be written as a sum of positive squares in 4 ways, for example, as 2897978499025 + 7222043512996 = 1702345^2 + 2687386^2 .

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 10120022012021 - 2³⁴ = 10102842142837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10120022011987 and 10120022012005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10120022012029) 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, 567447740 + ... + 567465573.

It is an arithmetic number, because the mean of its divisors is an integer number (1304582854443).

Almost surely, 2^{10120022012021} is an apocalyptic number.

It is an amenable number.

10120022012021 is a deficient number, since it is larger than the sum of its proper divisors (316640823523).

10120022012021 is a wasteful number, since it uses less digits than its factorization.

10120022012021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1134913591.

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

Adding to 10120022012021 its reverse (12021022002101), we get a palindrome (22141044014122).

The spelling of 10120022012021 in words is "ten trillion, one hundred twenty billion, twenty-two million, twelve thousand, twenty-one".