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121220111220994 = 215727111131712583
BaseRepresentation
bin11011100011111111000001…
…101010110100000100000010
3120220012112021222022000200201
4123203333001222310010002
5111342032241433032434
61105451430022435414
734350602234352442
oct3343770152640402
9526175258260621
10121220111220994
11356961846452a5
1211719329b92b6a
135284013461336
1421d1128552122
15e0332ec2b614
hex6e3fc1ab4102

121220111220994 has 32 divisors (see below), whose sum is σ = 183086543667456. Its totient is φ = 60191686077120.

The previous prime is 121220111220983. The next prime is 121220111221007. The reversal of 121220111220994 is 499022111022121.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9633635227 + ... + 9633647809.

It is an arithmetic number, because the mean of its divisors is an integer number (5721454489608).

Almost surely, 2121220111220994 is an apocalyptic number.

121220111220994 is a deficient number, since it is larger than the sum of its proper divisors (61866432446462).

121220111220994 is a wasteful number, since it uses less digits than its factorization.

121220111220994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26770.

The product of its (nonzero) digits is 10368, while the sum is 37.

The spelling of 121220111220994 in words is "one hundred twenty-one trillion, two hundred twenty billion, one hundred eleven million, two hundred twenty thousand, nine hundred ninety-four".