33921421897801 has 16 divisors (see below), whose sum is σ = 34415639294400. Its totient is φ = 33431599252800.

The previous prime is 33921421897763. The next prime is 33921421897807. The reversal of 33921421897801 is 10879812412933.

It is a cyclic number.

It is not a de Polignac number, because 33921421897801 - 2²¹ = 33921419800649 is a prime.

It is a super-2 number, since 2×33921421897801² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33921421897807) 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, 9922371 + ... + 12895591.

It is an arithmetic number, because the mean of its divisors is an integer number (2150977455900).

Almost surely, 2^{33921421897801} is an apocalyptic number.

It is an amenable number.

33921421897801 is a deficient number, since it is larger than the sum of its proper divisors (494217396599).

33921421897801 is a wasteful number, since it uses less digits than its factorization.

33921421897801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2973960.

The product of its (nonzero) digits is 5225472, while the sum is 58.

The spelling of 33921421897801 in words is "thirty-three trillion, nine hundred twenty-one billion, four hundred twenty-one million, eight hundred ninety-seven thousand, eight hundred one".